I just sleeved 2 of my spellbooks with Standard MTG Ultra Pro sleeves, but now the cards are quite difficult to grab within the spellbook. We tend to grab the card itself without the sleeve instead of the card and the sleeve.

To efficiently take everything out, we had to seize the sleeved card from the inner part of the sleeve.

What's your experience with sleeved cards in spellbooks: do you also have troubles grabbing sleeved cards or did I only buy the wrong ones?

I sleeve mine with solid colour backed Dragon Shield sleeves. Never had a problem, although they do tend to catch in side-loading books like the "Dragonhide" ones by Legion Supplies because they tend to have a ridge up the edge of the card sleeves.